| Nausea, vomiting, diarrhea, and skin rash are common reactions to the use of quinidine. |
| Intestinal absorption of penicillin, captopril, ciprofloxacin, quinidine and zidovudine was reported to be reduced when given with food. |
| In vitro drug interaction studies in human liver microsomes indicate that tramadol has no effect on quinidine metabolism. |
| Concomitant administration of LARIAM and quinine, quinidine, or chloroquine may produce electrocardiographic abnormalities. |
| Sinus node dysfunction is usually caused by drugs such as digoxin, quinidine, or procainamide. |
| Cross-sensitivity between XYLOCARD and procainamide or XYLOCARD and quinidine have not been reported. |
